#include <sys/prctl.h>
#include <systemd/sd-journal.h>
+
+#ifdef HAVE_LOGIND
#include <systemd/sd-login.h>
+#endif
#include "log.h"
#include "util.h"
+#include "macro.h"
#include "mkdir.h"
#include "special.h"
+#include "cgroup-util.h"
-#define COREDUMP_MAX (24*1024*1024)
+#define COREDUMP_MAX (768*1024*1024)
enum {
ARG_PID = 1,
};
static int divert_coredump(void) {
- FILE *f;
- int r;
+ _cleanup_fclose_ FILE *f = NULL;
log_info("Detected coredump of the journal daemon itself, diverting coredump to /var/lib/systemd/coredump/.");
- mkdir_p("/var/lib/systemd/coredump", 0755);
+ mkdir_p_label("/var/lib/systemd/coredump", 0755);
f = fopen("/var/lib/systemd/coredump/core.systemd-journald", "we");
if (!f) {
if (l <= 0) {
if (ferror(f)) {
log_error("Failed to read coredump: %m");
- r = -errno;
- goto finish;
+ return -errno;
}
- r = 0;
break;
}
q = fwrite(buffer, 1, l, f);
if (q != l) {
log_error("Failed to write coredump: %m");
- r = -errno;
- goto finish;
+ return -errno;
}
}
if (ferror(f)) {
log_error("Failed to write coredump: %m");
- r = -errno;
+ return -errno;
}
-finish:
- fclose(f);
- return r;
+ return 0;
}
int main(int argc, char* argv[]) {
int r, j = 0;
- char *p = NULL;
+ char *t;
ssize_t n;
pid_t pid;
uid_t uid;
gid_t gid;
struct iovec iovec[14];
- char *core_pid = NULL, *core_uid = NULL, *core_gid = NULL, *core_signal = NULL,
+ char _cleanup_free_ *core_pid = NULL, *core_uid = NULL, *core_gid = NULL, *core_signal = NULL,
*core_timestamp = NULL, *core_comm = NULL, *core_exe = NULL, *core_unit = NULL,
- *core_session = NULL, *core_message = NULL, *core_cmdline = NULL, *t;
+ *core_session = NULL, *core_message = NULL, *core_cmdline = NULL, *p = NULL;
prctl(PR_SET_DUMPABLE, 0);
goto finish;
}
- if (sd_pid_get_unit(pid, &t) >= 0) {
+ if (cg_pid_get_unit(pid, &t) >= 0) {
if (streq(t, SPECIAL_JOURNALD_SERVICE)) {
/* Make sure we don't make use of the journal,
}
core_unit = strappend("COREDUMP_UNIT=", t);
- free(t);
+ } else if (cg_pid_get_user_unit(pid, &t) >= 0)
+ core_unit = strappend("COREDUMP_USER_UNIT=", t);
- if (core_unit)
- IOVEC_SET_STRING(iovec[j++], core_unit);
- }
+ if (core_unit)
+ IOVEC_SET_STRING(iovec[j++], core_unit);
/* OK, now we know it's not the journal, hence make use of
* it */
if (core_comm)
IOVEC_SET_STRING(iovec[j++], core_comm);
+#ifdef HAVE_LOGIND
if (sd_pid_get_session(pid, &t) >= 0) {
core_session = strappend("COREDUMP_SESSION=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_session);
}
+#endif
+
if (get_process_exe(pid, &t) >= 0) {
core_exe = strappend("COREDUMP_EXE=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_exe);
}
- if (get_process_cmdline(pid, LINE_MAX, false, &t) >= 0) {
+ if (get_process_cmdline(pid, 0, false, &t) >= 0) {
core_cmdline = strappend("COREDUMP_CMDLINE=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_cmdline);
}
- core_timestamp = join("COREDUMP_TIMESTAMP=", argv[ARG_TIMESTAMP], "000000", NULL);
+ core_timestamp = strjoin("COREDUMP_TIMESTAMP=", argv[ARG_TIMESTAMP], "000000", NULL);
if (core_timestamp)
IOVEC_SET_STRING(iovec[j++], core_timestamp);
IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1");
IOVEC_SET_STRING(iovec[j++], "PRIORITY=2");
- core_message = join("MESSAGE=Process ", argv[ARG_PID], " (", argv[ARG_COMM], ") dumped core.", NULL);
+ core_message = strjoin("MESSAGE=Process ", argv[ARG_PID], " (", argv[ARG_COMM], ") dumped core.", NULL);
if (core_message)
IOVEC_SET_STRING(iovec[j++], core_message);
p = malloc(9 + COREDUMP_MAX);
if (!p) {
- log_error("Out of memory");
- r = -ENOMEM;
+ r = log_oom();
goto finish;
}
log_error("Failed to send coredump: %s", strerror(-r));
finish:
- free(p);
- free(core_pid);
- free(core_uid);
- free(core_gid);
- free(core_signal);
- free(core_timestamp);
- free(core_comm);
- free(core_exe);
- free(core_cmdline);
- free(core_unit);
- free(core_session);
- free(core_message);
-
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}